Watch out for rhythm and rhyme scheme, maybe it would work better as a free style. And in the last verse, why not keep the same rhythm by changing the lines. "If someone let you down, get up" instead of upsetting the rhythm by just adding some words without taking any away.
Did you mean for it to be in this format, or was it supposed to be in a more standard format, with just one sentence on each line? It's OK either way, I'm just curious.